化学研究与应用
化學研究與應用
화학연구여응용
Chemical Research and Application
2015年
10期
1477-1483
,共7页
王俊怡%赵丽青%卢钊浩%张培新%任祥忠
王俊怡%趙麗青%盧釗浩%張培新%任祥忠
왕준이%조려청%로쇠호%장배신%임상충
水热法%介孔%氧化镁%抗菌%形貌
水熱法%介孔%氧化鎂%抗菌%形貌
수열법%개공%양화미%항균%형모
hydrothermal method%mesoporous%magnesium oxide%antibacterial%morphology
以盐湖氯化镁、碳酸钠、氨水等为原料,采用水热法制备了孔径分布在5nm~10nm之间,材料比表面积达到424.42m2/g的介孔氧化镁。通过X-射线衍射仪( XRD)、扫描电子显微镜( SEM)、同步热分析仪( TG-DTA)以及抗菌性能测试等方法,探讨了反应时间、沉淀剂、分散剂和反应物浓度等因素对产物形貌和结构的影响。以大肠杆菌、金黄色葡萄球菌为测试菌株,用最小抑菌浓度( MIC)、24h抑菌效果图等方法研究了球状、片状和块状等不同形貌氧化镁的抗菌性能,建立了纳米氧化镁形貌与抗菌性能的关系。
以鹽湖氯化鎂、碳痠鈉、氨水等為原料,採用水熱法製備瞭孔徑分佈在5nm~10nm之間,材料比錶麵積達到424.42m2/g的介孔氧化鎂。通過X-射線衍射儀( XRD)、掃描電子顯微鏡( SEM)、同步熱分析儀( TG-DTA)以及抗菌性能測試等方法,探討瞭反應時間、沉澱劑、分散劑和反應物濃度等因素對產物形貌和結構的影響。以大腸桿菌、金黃色葡萄毬菌為測試菌株,用最小抑菌濃度( MIC)、24h抑菌效果圖等方法研究瞭毬狀、片狀和塊狀等不同形貌氧化鎂的抗菌性能,建立瞭納米氧化鎂形貌與抗菌性能的關繫。
이염호록화미、탄산납、안수등위원료,채용수열법제비료공경분포재5nm~10nm지간,재료비표면적체도424.42m2/g적개공양화미。통과X-사선연사의( XRD)、소묘전자현미경( SEM)、동보열분석의( TG-DTA)이급항균성능측시등방법,탐토료반응시간、침정제、분산제화반응물농도등인소대산물형모화결구적영향。이대장간균、금황색포도구균위측시균주,용최소억균농도( MIC)、24h억균효과도등방법연구료구상、편상화괴상등불동형모양화미적항균성능,건립료납미양화미형모여항균성능적관계。
The mesoporous magnesium oxide were synthesized by the hydrothermal method using Salt lake magnesium chloride,sodi-um carbonate and ammonia as raw materials. The specific surface area was as high as 424. 42 m2/g and pore size distribution ranged from 5 nm to 10 nm. The effects of calcination time,precipitating agent,dispersants and reactant concentration on the morphology and structural of magnesium oxide were investigated and detected by X-Ray Diffraction ( XRD ) , Scanning Electron Microscope (SEM),Thermal Gravity-Differential Thermal Analysis(TG-DTA)and the antibacterial performance test. The antibacterial proper-ties of spherical,flake and block morphology magnesium oxide were studied by the minima inhibitory concentration( MIC) and 24h bacteriostatic effect diagrams with Escherichia Coli,Staphylococcus aureus as target strains and the relevance of morphology and an-tibacterial properties was determined.